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The Seachem Alert Combo pack is a revolutionary way to keep tabs on your aquariums essential levels. This unique tester provides continuous pH and ammonia readings for up to 6 months, eliminating the need for strips and complicated tests.
Alert Combo is easy to use: just place each reader somewhere visible in your aquarium, and you're done! After only a few minutes the readers will automatically detect and display your waters pH and ammonia levels using a simple color-coded system, and will continuously update every 10 minutes after that. No care is required beyond removing any algae accumulation with a clean, soft material.
Ammonia Alert works in freshwater and marine aquariums, and provides continuous readings for up to 1 year. pH Alert works only in freshwater aquariums, and provides continuous readings of pH levels between 5.4 and 8.0 for 3-6 months.